On May 18, 2003 Mark Guerrero performed at the
the Autry Museum of Western Heritage at a concert which was
in conjunction with a screening of a documentary which was
still a work in progress by Jon Wilkman later to be called
"Chicano Rock: The Sounds of East Los Angeles." Mark
performed with his band Mark Guerrero & Radio Aztlán and
then backed his dad Lalo Guerrero.